期刊
TRENDS IN MICROBIOLOGY
卷 12, 期 9, 页码 399-401出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tim.2004.07.001
关键词
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Until recently, the only archaeon for which a bona fide origin of replication was reported was Pyrococcus ablyssi, where a single origin was identified. Although several in silico analyses have suggested that some archaeal species might contain more than one origin, this has only been demonstrated recently. Two studies have shown that multiple origins of replication function in two archaeal species. One study identified two origins of replication in the archaeon Sulfolobus solfataricus, whereas a second study used a different technique to show that both S. solfataricus and Sulfolobus acidocaldarius have three functional origins. These are the first reports of archaea having multiple origins. This finding has implications for research on the mechanisms of DNA replication and evolution.
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